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[GH-ISSUE #3504] docs: add human-in-the-loop guide for serverless/stateless environments #2736

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opened 2026-06-05 17:26:33 -04:00 by yindo · 0 comments
yindo commented 2026-06-05 17:26:33 -04:00
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Originally created by @aishanee-sinha on GitHub (Apr 8, 2026).
Original GitHub issue: https://github.com/langchain-ai/docs/issues/3504

Type of issue

issue / bug

Language

Python

Description

Problem

The existing Interrupts page assumes a persistent checkpointer is available.
Developers deploying LangGraph to serverless environments (AWS Lambda,
Google Cloud Functions, Cloud Run) have no guidance on how to implement
human approval flows without a persistent store.

Proposed solution

Add a companion how-to guide covering the stateless alternative: serializing
pending graph state into the callback payload (e.g. Slack button value) so
no server-side store is needed between invocations.

The guide would cover:

  • When to use this pattern vs interrupt() + checkpointer
  • A full Slack approval flow example
  • Webhook retry deduplication
  • Trade-off comparison table

I have a draft ready to submit once this is approved.

Originally created by @aishanee-sinha on GitHub (Apr 8, 2026). Original GitHub issue: https://github.com/langchain-ai/docs/issues/3504 ### Type of issue issue / bug ### Language Python ### Description ## Problem The existing Interrupts page assumes a persistent checkpointer is available. Developers deploying LangGraph to serverless environments (AWS Lambda, Google Cloud Functions, Cloud Run) have no guidance on how to implement human approval flows without a persistent store. ## Proposed solution Add a companion how-to guide covering the stateless alternative: serializing pending graph state into the callback payload (e.g. Slack button value) so no server-side store is needed between invocations. The guide would cover: - When to use this pattern vs `interrupt()` + checkpointer - A full Slack approval flow example - Webhook retry deduplication - Trade-off comparison table I have a draft ready to submit once this is approved.
yindo added the langgraphexternal labels 2026-06-05 17:26:33 -04:00
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Reference: langchain-ai/docs#2736
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